Most hairs grow actively. There are only a few hairs that are in the dormant phase that fall out after two or three months. There are many reasons for hair falling out. It is important to know the different causes of thinning hair in women because women experience more hair fall than men. There are different hair loss reasons in female such as childbirth, grief, hormonal pills, etc. Some other important causes of thinning hair in women are given here.